Combined packing and bearing means



April 20 1926. 1,581,471

D. D. PAXTON COMBINED PACKINGv AND BEARING MEANS Filed De: 5, 1921 I WITNESS A D'DIVENTOR BY J a ATTORNEY Patented Apr. 20, V1926.Y

D )UNITED DONALDSON D.1 AXTON, oFoAiDAND, CALIFORNIA. 5

COMBINED PACKING vAND BEARING MEANSI* f i Applicationmea December 5, 1921.l serial No.752`o,1oo.

To all whom t may concern:

Be it known that I, DONALDSON D. PAX ',roN, a citizen LVof the United States, and a resident of Oakland, vcounty of Alameda,

and State of California, have invented a new.v

and; useful Combined Packing, and Bearing Means, of whichthe following is a specifica-A l like sections 6 and 7 provided with' semition. 1 1 Y Y n My invention `relates `tok a packing and v l which extends a the packing gland is requiredin the repack-V ing operat1on,fandwhich.at they same time v affords an efficient bearing for` the ,shaft within 'the-'gland vide theigla'nd with arepl'aceable, bearing for the shaft. v

Thejinvention Vpossesses. fother objects and ,Y

` i features ofadvanta'ge,"some. of which, with the foregoing, will be set forth in the'fol- Vlowingl description ,of the preferred form of my invention which is illustrated in the drawings accompanying and forming part' of the specification. lIt is to be understood that I-do not limit myself to the showing made by the said drawings and description, as I may adopt variations of the preferred form within the scope -of my'invention as set forth in the claims. f

Referring to said drawings :V Figure 1 is a longitudinal sectional view showing the packing and bearing means of my invention operatively disposed -on a hub and shaft. v Figure 2 is an end view of the means. Figure 3 is a half section and side elevation of a modified form of the structure.

Figure 4 is an end view of the structure shown in Figure 3. V-

Briefly expressed means of my invention as here showncoml prises a gland formed of transversely separable sections which are adapted for threaded engagement with a hub and which enclose a bearing which presents a continuous annular surface forthe shaft which eX tendsvthrough said hub. Means are also provided on the sections for preventing the longitudinal and rotative displacement of the bearing with respect thereto.

Vbearing structure foruse in connection with which aminimum longitudinal movement l of f adjacent the outer end thereof is a bearing Another object of theinvention is to' proi `part of the gland adaptedv for pressing the i he packing and bearing A detailed description follows: l As illustrated in- Figure 1 the means of my v,invention 'is arrangedabout a shaft 2 which is rotatably mounted in the hub 3 of the wall-off a sealed'v chamber. In the pre` 60 ferred embodiment the means comprises a gland 4 which is preferably'formed'of two circular cavities which in the assembled -position of the sections delinea centralbore 8. The inner endv9 of the'l cavitiesV is screw-r threaded So as to enable the gland tobe readily Y' attached to thefsimilarly threaded portion 12- of saidf hub. The sectionsV are adapted to be releasablyheld togetherby means of, bolts 13V and 114 which engagein the' bosses A16; and 17 formed .onthe sections.

Arranged' within the bore ofthe lgland memberflS having an. outside kdiameter .sub st-antially equal tothe vbore of the 'gland and provided 'in turnwith a bore 19V whose diameter is such thatfthe shaftQ may rotate freely therein The kbearing 18 is held v against; outward Alongitudinal displacement in thev gland boreby ,means -of shoulders 21 formed at the outer end of each of the sec* tions. The bearing also functions as the packingl medium `against the hub, and for this purpose the innerV end of the bearingv is beveled so as tocausethe packing medium to be forced` inward radially against the shaft. A set-screw 22 extending through one of the sections engages the bearing and prevents the rotation thereof with respect tothe gland. The portion of the shaft 2V engaging in the bearing is preferably lubricated by means of the grease-cup 23 which is fixed to the gland andcommunicates with the bore of the bearing through the passage 24. j f

When it is desired to repackthe structure, s

it is merely necessary to withdraw the bolts 13 and lfiand disassemble the sections. The 100 new packing lmay thenl be wrapped around. y the portion of the shaft between thehub `3 Vand bearing 18, the latterbeing retained on l T the shaft. As soon as the necessary amountv of packing has been wrapped, the Vsect-ions are assembled about the shaft, bearing, and

Ward the hub, the packing Will be forced in tight engagement with shaft and. any effec'- tive seal thus produced. Y

It will now be understood that Wit-hthe means of my invention a maximumi amountl of packing may be disposedI about the shaft longitudinally thereof Without necessitating;l

a large longitudinal displacement of the gland during the repacking operation, or sacrificing the annular continuity afforded the bearing surface for vthe shaft bythe use of-Q` the usual" one-piecev gland Furthermore diie to the fact that 'the' bearing and gland are separable, the former which We-arslfirst,

mayb'e readilyfreplacedl rather than the en` tire gland'l Y In Figures 3 andi 4' the construction of vided' Witlr screw-tlireafds for engagementV With ai hub thron'gh'vvhich said shaftis ard ranged` to extendA and against which. one end of said'packingisi adapted to abut, means forl securing said' sections together, afbearing for said shaft presenting' an. uninterf rupted annular surface therefor. andz adapt# ed to be positioned Within said sections at theotlier end ofsaid bearing, means. onfeach of' said sections for retainingsaidf bearingagainst longitudinal displacement, and means on one vofsaidsections for preventing the rotative movement of" said bearing with said shaft, ,Y Y Y 2. In a combined packing and bearing means for a rotatable shaft, a separable pair of segmental sections arranged to contain Within the bore thereof a packing' medium for said shaft and provided'atone:end with a screw-threaded portion for engage"-v v ment with a. similarly threaded portion; of*

an extraneousmember through whiclif saidV shaft is arranged to extend,y and' against whichl one end' of said packing is.l adaptedi to abut, means for securing said sectionstjolA gether in assembled position, a. bearing for said shaft presenting'uninterrupted annular surface therefor andi' adapt-ed toA be posi.- tioned Within the bore of saidl sections adjacent the other" end' thereof, a: .shoulder formedlon both offsaid sections adapted-'f to" engage the outer endl ofg sai'dg bearingi: the inner end? of sa1dbear1ng'beingf arranged" toabut against' the other.` end of1V said?V packe: ing and'V being beveled so: as" to'.` enable it to exert a radially-inward pressure Tagainst` the packing, andi Vmea-ns1 on one 'ofi said sections forl holding' said; bearing' against rotation with said shaft.

In testimony; whereof,` I? have hereuntofset myI hand at Oakland,` (alifz, thisft'h.. day off November: i

DT... PAEXTEON. 

